BGS mineralogy and petrology collection record

Sample number S4225
Sample Donor Barrow, G.
Rock name 'Original entry: Hornblende Gneiss'
Stratigraphy Not entered
Comments Typical hornblende gneiss; see Memoir, p. 61
Locality details Glen Doll
50k map sheet Balmoral (65)

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Map reference NO 25 76
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


S4225

Cross Polarized, S4225

Plane Polarized, S4225

Plane Polarized, S4225